baber/WOPTO huggingface dataset:
Patent KR-20030057159-A (KR)
Title: Plate-Heat-Exchanger Arrangement Structure of Gas Boiler
Inventor: CHOI JIN MIN
IPC: F24H7/00
Filed: 2001-12-28
Abstract: PURPOSE: A disposing structure of a plate type heat exchanger for a gas boiler is provided to improve the heat exchange of a heating plate in the plate type heat exchanger by installing the plate type heat exchanger at the inside of an expansion tank. CONSTITUTION: An expansion tank(2), a circulation pump(6), a three-way valve(7), and a plate type heat exchanger(3) are installed around a main heat exchanger(1), respectively. The plate type heat exchanger is integrally installed at the inside of the expansion tank.
Patent KR-20030057882-A (KR)
Title: Method of forming a gate electrode in semiconductor device
Inventor: DONG CHA DEOK
IPC: H01L21/28
Filed: 2001-12-29
Abstract: PURPOSE: A method for forming a gate electrode of a semiconductor device is provided to be capable of restraining particles from being generated at the upper surface of a doped polysilicon layer by depositing the doped polysilicon layer and an undoped polysilicon layer at a different temperature. CONSTITUTION: A gate electrode is formed on the upper portion of a semiconductor substrate(100), wherein the gate electrode is formed by sequentially stacking a gate oxide layer(102), the first doped polysilicon layer(104), a dielectric layer(106), the second doped polysilicon layer(108), an undoped polysilicon layer(110), and a Wsix layer(112). At this time, the doped polysilicon layer and the undoped polysilicon layer are deposited at different temperatures, respectively. Preferably, the doped polysilicon layer is deposited at the temperature of 530-570 °C and the undoped polysilicon layer is deposited at the temperature of 480-520 °C.
Patent KR-20030059419-A (KR)
Title: Fabricating method of image sensor using salicide
Inventor: LEE GYEONG RAK
IPC: H01L27/146
Filed: 2001-12-29
Abstract: PURPOSE: A method for manufacturing an image sensor by using salicide is provided to be capable of improving processing margin and simplifying manufacturing processes when forming a salicide at a light receiving region containing a photodiode. CONSTITUTION: A field insulating layer(31) is locally formed on a semiconductor layer(30). A gate electrode(33) is formed on the semiconductor layer(30). A photodiode(PD) is formed in the semiconductor layer located between the field oxide layer and the gate electrode. An insulating layer(38) is formed on the entire surface of the resultant structure. A shrunk photoresist pattern(39a) is formed to expose partially the surface of the photodiode(PD). After flowing the photoresist pattern, the surface of the gate electrode(33) is exposed by etching the insulating layer(38) by using a flowed photoresist pattern(39b). A salicide layer is then formed on the exposed gate electrode.
Patent KR-20030058430-A (KR)
Title: Connection soclcet and manu facturing method for resin screw pipe
Inventor: AHN GYE JIN
IPC: B29D23/18
Filed: 2001-12-31
Abstract: PURPOSE: Provided are a connection socket for spiral pipe and its preparation method, which is conveniently assembled and contains foaming agent even in depression portions of the spiral pipe so that it gives a rigid connection performance. CONSTITUTION: The process for preparing the socket comprises steps of: admixing 50-70% HDPE, 10% adhesive, 10-20% extensive graphite and 10-20% secondary foaming agent; forming 'T' connection terminals(4) and a coupling hole at a coupling portion of hot wires; arranging the hot wires on a metallic mold then forming the admixture in the mold to obtain a socket(1); cutting both ends of the socket to expose the hot wires; removing coating of the hot wires(2); coupling the hot wires into the coupling hole of the connection terminals and soldering them to rigidly connect them.
Patent KR-20010072877-A (KR)
Title: 교류 회로망에 사인 전류를 공급하기 위한 인버터
IPC: H02M7/48
Filed: 1999-09-07
Abstract: 본 발명은 교류 회로망에 사인 전류를 공급하기 위한 인버터에 관한 것이다. 본 발명의 목적은 단락회로를 견딜 수 있고, 단락회로의 위험을 줄이는 능력을 향상시키는 것이다. 
     본 발명은 사인 진동의 반 진동을 발생시키기 위한 단지 하나의 스위칭 유닛을 사용하는 것에 기초한다. 따라서, 사인 진동의 양의 반 진동을 발생시키기 위하여 사인 전류의 음의 성분을 발생시키기 위한 것과는 다른 스위칭 유닛이 사용된다. 이 결과,  양의 반진동의 발생 동안 스위칭 유닛의 단지 하나의 스위치가 사이클되거나 활성화되며, 사인 전류의 음의 반진동의 발생 동안 다른 스위치가 사이클되거나 활성화된다. 두 스위치간의 단락회로의 위험은 양에서 음의 반진동으로 변화하는 동안 또는 음에서 양의 반 진동으로 변화하는 동안 각각 시간에 대하여 감소한다.
Patent KR-20010099641-A (KR)
IPC: B09B3/00
Filed: 1999-09-08
Abstract: 플랫 패널 디스플레이(15)에 사용된 글라스는 글라스의 납 성분을 분리하는 것에 의해 지구 환경을 보존하면서 리사이클될 수 있다.  주로 글라스로 이루어진 페이스 플레이트(2)와 리어 플레이트(1)가 프레임(3)을 통해 플리트 글라스(5)로 기밀 접하되어 있는 구조를 갖는 플랫 패널 디스플레이를 분해하는 방법은 페이스 플레이트(3)와 리어 플레이트(1)를 분리하는 공정을 포함하는 것에 특징이 있다.  분리하는 공정은 그 분리가 절단, 용해 또는 용융에 의해 실행되는 것에 특징이 있다.
Patent KR-20010075154-A (KR)
IPC: G05G9/047
Filed: 2000-08-10
Abstract: (목적) 
     본 발명의 목적은 조이스틱으로 불리는 다방향 입력장치의 전체 높이를 억제하면서, 조작부재와 회전부재가 중립위치로 복귀할 때의 정밀도를 향상시키는 것이다. 
     (수단) 
     조작부재(30)는 직교하는 두방향으로 돌출한 회전축(35,35)을 구비하고 일체적으로 설치된다. 디스크(32)는 회전축(35,35)의 아래에 설치된다. 하부 회전부재 (40B)는 그 하면에 리세스(46B)를 갖고 설치되고, 디스크(32)는 이 리세스(46B) 내부에 회전가능하도록 수용된다. 이 리세스(46B)는 그 내부면에 한쌍의 베어링 (47B,47B)를 갖고, 회전축(35,35)은 이 베어링 속으로 회전가능하게 장착된다. 회전부재(40A,40B)는 그 양단축에 평탄면(44A,44B)를 갖고 설치된다. 스프링(60)에 의해 바이어스되는 고리형 슬라이더(50B)는 아래쪽 회전부재(40A,40B)의 평탄면에 탄력있게 접촉한다.
Patent KR-20010079853-A (KR)
IPC: B32B5/28
Filed: 1999-09-20
Abstract: 자동차 헤드라이너 및 도어 패널과 같은 차량 내장재용으로 특히 적합한 적층 패널형 구조체(10)는 다중 데니어 폴리에스테르 섬유 코어(12), 및 상기 코어의 대향하는 주면 상에서 코어(12)에 부착되어 서로 얽힌 무작위 배향 구조 강화 섬유(14,16)를 갖춘다. 상이한 데니어의 서로 얽힌 폴리에스테르 섬유의 코어(12)는 상기 코어의 외면 상에 비교적 큰 데니어 섬유와, 다소의 2 성분 섬유를 갖는 것이 바람직하다. 또한, 적층 구조체는 저 용융 층을 가진 불침투성 중합체 필름(18)을 가지며, 상기 코어(12)의 일면에 대해 강화 섬유(14)를 유지시키고, 상기 불침투성 필름(18)에 부착된 스크림층(20)을 유지시킨다. 상기 강화 섬유층(16) 다음에는 중합체 웹(19)과 커버 스톡(22)이 있다. 본 발명은 상기 적층 구조체를 제조하는 방법을 더 포함한다.
Patent KR-20010107924-A (KR)
IPC: H02P21/18
Filed: 1999-08-20
Abstract: 본 발명의 동기전동기 제어장치 및 제어방법은, 전류를 검출하고, 이 전류를 회전자상에 상정한 - δ축에 좌표변환하고, 도출한 전류 및 임의로 부여한 보정전류지령에 의해 보정항을 구하고, 동기전동기의 정상상태에서의 전압방정식에 보정항을 적당한 게인을 곱해서 가산하고 - δ축 전압지령을 구함으로써, 연산량이 적고, 부하의 관성에 의해 게인조정이 불필요한 제어방식을 얻을 수가 있다.
Patent KR-20010093194-A (KR)
IPC: E02F3/38
Filed: 2000-10-17
Abstract: 선회프레임(17)의 왼쪽 세로판(19)과 오른쪽 세로판(20) 사이에는 아래쪽 가로판(23)과 위쪽 가로판(24)을 설치하고, 오른쪽 세로판(20)에는 위쪽 가로판(24) 의 상면측에 위치하여 호스삽입구멍(26)을 설치한다.  또 아래쪽 가로판(23)과 위쪽 가로판(24) 사이에는 위쪽으로부터 낙하하여 오는 토사가 흐르는 토사통로(25) 를 형성한다.  따라서 호스삽입구멍(26)으로부터는 옵셋용 유압호스 (37E), 버킷용유압호스(37F), 아암용 유압호스(37G)로 이루어지는 유압호스(37)를 인출할 수 있어 이들 유압호스(37)를 용이하게 취급할 수 있다.  또 토사통로(25)는 낙하한 토사를 상부 선회체(2)의 외부로 배출할 수 있어 유압호스(37)의 주위에 토사 등이 퇴적하는 것을 방지할 수 있다.
Patent KR-20010099848-A (KR)
IPC: B22F5/10
Filed: 2000-10-19
Abstract: 본 발명의 시계 밴드부품의 제조 방법은 압출성형에 의해 원료분말을 포함하는 성형체를 제조하는 단계(1A), 상기 성형체를 절단하는 단계(2A), 절단된 성형체를 탈지하는 단계(3A), 탈지체를 소결하여 소결체를 얻는 단계(4A)로 이루어진다.  이 때문에, 복잡한 형상이라도 용이하게 제조 할 수 있고, 재료 선택의 폭이 넓은 시계 밴드부품의 제조 방법을 제공할 수 있다.
Patent KR-20010104327-A (KR)
IPC: H03H7/42
Filed: 2000-01-13
Abstract: 많은 응용 분야에서, 차동 전류 신호를 단일단 신호로 변환하는 것이 요구된다.     기존 접근 방법에서의 단점은 저 변환 효율, 제한된 대역폭, 및 큰 크기를 포함한다.     여기에 개시된 본 발명의 변환기는, 작은 크기와 넓은 동작 대역폭을 갖는 고 효율의 장치를 얻기 위해, 액티브 장치들을 사용한다.
Patent KR-20020007297-A (KR)
Title: Method for producing interleukin-1 receptor antagonists, a therapeutic activity protein, from body fluids
IPC: A61P43/00
Filed: 2000-01-31
Abstract: The present invention relates to a method for producing a prophylactically or therapeutically active protein, the syringe being filled with a body fluid and incubated, and the prophylactically or therapeutically active protein subsequently being formed in the body fluid.
Patent KR-20020034989-A (KR)
Title: 연자성 분말과 그것을 이용한 복합 자성재료
IPC: H01F1/20
Filed: 2001-01-24
Abstract: 본 발명은 두개의 자기공명을 나타내기 위해 연자성 분말과 접합제를 구비하는 복합 자성재료를 허용함으로써, 고주파 영역에서 광대역 전자기 억제효과를 얻기 위한 전자기 간섭 억제 재료를 제공한다. 복합 자성재료에 있어서, 연자성 재료의 비표면적(specific surface area)은 서로 다른 강도의 2개의 이방성 자기장을 나타내도록, 소정의 레벨로 유지된다.
Patent KR-20010108419-A (KR)
IPC: H01L21/3205
Filed: 2000-03-06
Abstract: 본 발명에 따른 방법은 표면에서 산화물을 제거하는 단계와, 그 후에, 산화물제거의 5초이내에 표면에서 부동화층의 도포를 개시하는 단계를 포함하는 바, 상기 표면은 구리표면으로 될 수 있으며, 본드패드표면을 추가로 구비하고, 산화물의 제거는 구연산 혹은 염산을 함유한 용매를 도포하는 단계를 추가로 포함하며, 부동화층의 도포는 아졸계 화합물을 포함한 용매를 도포하는 단계를 추가로 포함하되, BTA를 추가로 포함할 수 있는 한편, 상기 방법은 도포가 개시된 후에 35초내에 부동화층을 완전히 도포하는 단계를 추가로 포함할 수 있다.
Patent KR-20030020814-A (KR)
IPC: G02B6/38
Filed: 2001-07-10
Abstract: 복수개의 동일수에 의한 구멍(1)이 형성되어 있는 복수매의 평면형상의 각 금속박판(2)을 적층 및 서로 고착함에 의한 다심 페룰의 제조방법으로서, 또한 해당 적층 및 고착이 행하여지고 있지 않은 각 금속박판(2)에 형성된 해당 복수개의 구멍(1)은 서로 연통함으로써, 각각 공동을 형성할 수가 있도록, 각 구멍(1)의 위치 및 지름이 설계되어 있는 것에 근거하여, 구멍지름, 구멍위치등에 있어서 고정밀도이고, 또한 다심용 광커넥터, 디바이스등에 적용할 수가 있는 다심 페룰의 제조방법.
Patent KR-20020010152-A (KR)
Title: Personal mobility vehicles and methods
IPC: B62D51/02
Filed: 2000-06-01
Abstract: A vehicle capable of an extraordinary mode of motorized motion programmed to draw the attention of an operator. When one or more sensors sense a condition requiring attention of the operator, a periodic acceleration is superposed upon the motion of the ground-contacting members. The extraordinary mode of locomotion may include a mode where the vehicle alternates between braking and speeding up and braking over each period of the modulation.
Patent KR-20030060581-A (KR)
Title: Can communication system in comercial bus
Inventor: PARK YUN SEO
IPC: B60H1/00
Filed: 2002-01-10
Abstract: PURPOSE: A CAN(Controller Area Network) communication system in a commercial bus is provided to reduce weight and length of communication wires. CONSTITUTION: Harness between a remote control panel(10) and an OP(OPeration) panel(20) is reduced to be formed with two communication wires. CAN is a network system for a vehicle developed for digital serial communication between various measurement and control equipments of the vehicle. The CAN is a flexible network system supporting master/slave, multiple master and peer to peer. Data is transmitted through a data frame in the CAN system. The data frame is a frame transporting data from a transmitting node to a receiving node, and is capable of transmitting up to 8 bytes of data. CAN protocol is defined by format of data transmitted in a bus, timing of transmission bit, mediation priority and an error detection method. CAN network works at up to 1Mb/s of transmission speed. A commercial bus air conditioning system loads information on up to 8 data in a CAN data frame. Data concerning a blower of an air conditioner is carried by data 1, data concerning a heater is by data 2, data of a temperature control switch is by data 3. Data is loaded to a TX buffer of the remote control panel, and transmitted to an RX buffer of the OP panel. The OP panel verifies data received by the buffer and processes to actuate motors.
Patent KR-20020023325-A (KR)
Title: Lamp emitting multiple color for decoration
Inventor: LEE YOUNG WOO
IPC: F21S10/00
Filed: 2002-01-17
Abstract: PURPOSE: A decorative multi-colored luminescent lamp is provided to achieve a wide variety of decorative effects by allowing colors and light emission speed to be adjusted in a free manner. CONSTITUTION: A lamp comprises a lamp body(B) having PCBs incorporated into the main body so as to control colors and light emission speed, respectively. The PCBs are connected to a lamp on-off switch(1), a main switch(2) for selecting luminous colors, and an auxiliary switch(3) for controlling light emission speed. The PCBs and switches are connected to a drive battery or an AC power, and the lamp body has a luminous display(8) formed at the upper surface of the lamp body.
Patent KR-20030062502-A (KR)
Title: Heat pipe
Inventor: SEO GWANG SEOK
IPC: F28D15/02
Filed: 2002-01-17
Abstract: PURPOSE: A heat pipe for exchanging heat is provided to improve thermal conductivity by integrally forming plural radiating fins with a body, and to increase the contact area by forming a latticed groove. CONSTITUTION: A heat pipe body(1) of a heat pipe comprises a heat input part(2) and a radiating part(3), and made of high thermal conductivity metal. Plural radiating fins(31) are integrally formed around the radiating part, and spirally protruded. A latticed groove is formed in the bore of the body, and volatile actuating fluid is charged in the bore of the body. The contact area of the actuating fluid and cooled fluid or radiating fins is enlarged by forming the latticed grooves in the body, and the heat exchange efficiency is improved. The radiating efficiency is improved by integrally forming the radiating fins around the radiating part.
Patent KR-20020061543-A (KR)
Title: Method and device for downloading application data
Inventor: FOUSS SEBASTIEN
IPC: H04N5/00
Filed: 2002-01-18
Abstract: PURPOSE: A method and an apparatus for downloading application data are provided to download application data from a distributed application environment. CONSTITUTION: The security system comprises an extractable security piece(10) which can be removed from the computer device by the authorized user, such an extractable security piece containing at least an extractable main private key and a main PC public key, a PC security area(12) which is a non-extractable part of the computer device, such a PC security area containing at least a PC private key and an extractable main public key constituting with the keys of the extractable security piece a PKI(Public Key Infrastructure), and processing devices(14) in each of the extractable security piece and the PC security area for carrying out a mutual authentication of the extractable security piece and the PC security area after the eytractable security piece, which had been previously removed, has been put back at its right location thereby enabling the authorized user to access data stored in the computer device.
Patent KR-20030001215-A (KR)
Title: A hybrid power amplifier
Inventor: SONG HWA JAE
IPC: H03G3/20
Filed: 2002-01-25
Abstract: PURPOSE: A hybrid power amplifier is provided to restrain the generation of noise by using an analog amplifier for amplifying an audio signal under a reference level. CONSTITUTION: An audio signal processing portion(10) receives an audio signal and amplifies the audio signal to a constant level. A digital amplification portion(20) amplifies an output signal of the audio signal processing portion(10) to a digital signal having a predetermined level. An analog amplification portion(30) amplifies the output signal of the audio signal processing portion(10) to the audio signal having a predetermined level. A control portion(40) compares the audio signal of the audio signal processing portion(10) with a predetermined noise level in order to output selectively the amplified audio signal of the digital amplification portion(20) and the amplified audio signal of the analog amplification portion(30). A switching portion(60) switches the amplified audio signal of the digital amplification portion(20) to the amplified audio signal of the analog amplification portion(30) or the amplified audio signal of the analog amplification portion(30) to the amplified audio signal of the digital amplification portion(20). A speaker(50) is used for the amplified audio signals of the digital amplification portion(20) and the analog amplification portion(30).
Patent KR-20030071095-A (KR)
Title: A Dimmer for a Fluorescent Lamp and a Dimming Control Method for a Fluorescent Lamp
Inventor: CHEONG HWA JIN
IPC: H05B41/38
Filed: 2002-02-27
Abstract: PURPOSE: An apparatus and a method for controlling intensity of illumination in a fluorescent lamp are provided to control the intensity of illumination by utilizing a switch for controlling the fluorescent lamp. CONSTITUTION: An apparatus for controlling intensity of illumination in a fluorescent lamp includes a switching element(108), a phase detector(102), a phase controller(104), and a driver(106). The switching element(108) is used for switching an electric path of a power supply portion to an electronic stabilizer in order to control the intensity of electric power. The phase detector(102) is used for detecting a phase of the supplied power. The phase controller(104) is used for controlling a phase of a supplied voltage according to the desired intensity of illumination by using the phase of the supplied power of the phase detector(102). The driver(106) is used for driving the switching element(108) according to a controlled phase value of the phase controller(104).
Patent KR-20030071141-A (KR)
Inventor: LEE KANG BE
IPC: E04B1/80
Filed: 2002-02-27
Abstract: PURPOSE: An insulating material using window paper and cotton wool is provided to improve insulating efficiency and promote environmentally friendly application with harmless effect. CONSTITUTION: The process of making insulating material using window paper and cotton wool is composed of: placing cotton wool between two sheets of square window paper; attaching thick paper to the outsides of each window paper to support the window paper and the cotton wool, moreover to promote the efficiency of construction and transportation. Consequently, the introduction of the improved insulating material prevents environmental disruption and a waste of energy by effectively taking the place of chemically compound insulating materials causing environmental pollution.
Patent KR-20030071929-A (KR)
Title: Resist Composition For Column Spacer of LCD
Inventor: BAE YU RI
IPC: G03F7/075
Filed: 2002-03-02
Abstract: PURPOSE: Provided is a resist composition for a column spacer of liquid crystal display device which can be patterned in an adequate thickness, and has excellent heat resistance, leveling property, resolution, coating residue, elasticity and pattern stability. CONSTITUTION: The resist composition for a column spacer of liquid crystal display device comprises: 10 to 40 parts by weight of a binder resin consisting of a binder resin of formula 1, a binder resin of formula 2, and their mixture; 1 to 20 parts by weight of a multi-functional monomer having an ethylenic unsaturated bond; 1 to 20 parts by weight of an elastomer having an ethylenic unsaturated bond; 1 to 10 parts by weight of a photo-initiator; and 0.001 to 0.1 parts by weight of a silicone compound having an epoxy group.
Patent KR-20030072523-A (KR)
Title: copper free wire
Inventor: KIM YONG
IPC: B23K35/40
Filed: 2002-03-04
Abstract: PURPOSE: A non-plated solid wire is provided to easily feed welding rods by controlling an amount of spatters and preventing fume from being generated caused by copper. CONSTITUTION: A ten point height of a surface of a non-plated solid wire is about 0.1 to 9.00 micrometer. A vickers hardness of the surface of the non-plated solid wire is about 125 to 310. Copper is not plated on the surface of the non-plated solid wire. On the basis of that the feeding rate of the wire is depending on an amount of spatters, the ten point height and the vickers hardness of the surface of the non-plated solid wire are adjusted by controlling the amount of the spatters. When the non-plated solid wire has the vickers hardness about 125 to 310 and the ten point height about 0.1 to 9.00 micrometer, the amount of the spatters is reduced when performing a welding work.
Patent KR-20030071434-A (KR)
Inventor: BAEK EUN KI
IPC: E04C1/40
Filed: 2002-02-27
Abstract: PURPOSE: A method of manufacturing a brick is provided to improve an adiabatic efficiency and help workers handle bricks in a simple way. CONSTITUTION: The process of manufacturing a brick is composed of: producing a container made of steel plates and polyvinyl; making the surface of the container rugged and making the container vacuous or creating an access hole provided with a stopper on the side of the brick; decorating the surface of the container with steel wires and putting insulating materials such as Styrofoam into the container through the access hole in order to promote the outer appearance of the brick. Consequently the efficiency of keeping warmth gets much higher than existing cement bricks or earthen bricks.
Patent KR-20030072891-A (KR)
Title: Structure for connecting rear floor panel to rear endpart in vehicle
Inventor: HAN GUK IL
IPC: B62D25/20
Filed: 2002-03-07
Abstract: PURPOSE: Joining structure of a rear floor panel and the rear end portion in a vehicle is provided to maintain stillness of the room of the vehicle and prevent a vehicle body mounting part from rusting. CONSTITUTION: A rear end assembly(20) is jointed to a rear floor panel(10). The rear end comprises a rear end member(22) and a rear end panel(24). A first flange(26) welded to the rear floor panel is bent to one side of the rear end member. A second flange welded to the rear end panel is bent to the other side of the rear end member. A flange(30) contacting with a flange(12) of the rear floor panel is bent to one side of the second flange. A gusset, to improve stillness and to prevent rainwater from coming in, is formed between the rear floor panel and the rear end of the vehicle. A joined flange, joined to the inside of the rear floor panel, the rear end member and the rear end panel, is bent around the gusset. A reinforcing part to maintain stiffness is formed to the gusset.
Patent KR-20030073692-A (KR)
Title: Earth-quake-proof apparatus for a structure
Inventor: KIM SANG HEON
IPC: E01D19/04
Filed: 2002-03-12
Abstract: PURPOSE: An earthquake-proof device for an architectural structure is provided to make a structure resist an earthquake. CONSTITUTION: The earthquake-proof device(100) for an architectural structure comprises: a cylinder(110) installed to a structure; a split plate(140) installed in the cylinder(110) to split the inner space of the cylinder(110) into a primary space(112) and a secondary space(117) and provided with a perforated hole(142) to connect the primary space(112) and the secondary space(117); a primary filler(160) filled in the primary space(112); a secondary filler(162) filled in the secondary space(117); a valve mechanism(170) opening and closing the perforated hole(142) of the split plate(140) according to a difference of pressure between the primary space(112) and the secondary space(117); a piston(180) installed in the primary space(112) of the cylinder(110) to split the primary space(112) into a primary chamber(112a) and a secondary chamber(112b) and provided with a primary filler passage(182) to allow the mutual movement between the primary chamber(112a) and the secondary chamber(112b); and a piston rod(150) installed to the other structure and connected with the piston(180).
Patent KR-20030076133-A (KR)
Title: Developmentof culture medium of phytoplanktons (microalgae)
Inventor: KIM MI KYUNG
IPC: C12N1/12
Filed: 2002-03-22
Abstract: PURPOSE: A method for development of a medium for culturing phytoplankton(microalgae) is provided, thereby effectively increasing the production yield of the phytoplankton(microalgae). CONSTITUTION: A method for development of a medium KEP for culturing phytoplankton(microalgae) comprises adding bacteria mineral water into a conventional medium for phytoplankton, wherein the conventional medium for phytoplankton is selected from BBM 10%, f/2, Chu 10 and GB11; the amount of bacteria mineral water added is 3%; the bacteria mineral water is prepared by fermenting a mixture of porcine urine and minerals of rock pellet using aerobic bacteria in a fermenter with aeration.
Patent KR-20020086224-A (KR)
Inventor: LEE GYE GWANG
IPC: H04B1/38
Filed: 2002-03-30
Abstract: PURPOSE: A wireless handsfree device and a method for controlling a transmitting and receiving sound using the same are provided to perform a call without using a specific connection line. CONSTITUTION: A receiving unit(10) senses a magnetic field generated in a speaker of a portable phone, converts the magnetic field into an electric signal, and converts the electric signal into an audible sound recognized by a user, and outputs the audible sound through a receiving speaker(SP1) of a handsfree. A transmitting unit(20) receives a voice of the user through a microphone, converts the received voice into an electric signal, outputs the electric signal through a transmitting speaker(SP3) of the handsfree installed near a microphone of the portable phone, and transmits the voice of the user to the microphone of the portable phone.